Vehicle-tire.



2 SHEETS-BEBE! 1.

Patented Sept. 20, 1910.

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W. D. MoNAULL. VEHICLE TIRE.

APPLICATION FILED APB-5, 1909.

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W. D. MoNAULL.

VEHICLE TIRE.

APPLIOATION FILED APB-.6, 1909. 970,535.

Patented Sept. 20, 1910.

2 SHEETS-SHEET 2.

iV/T/VESSE vl am UNITED STATES PATENT OFFICE.

WILLIAM D. MQNAULL, F TOLEDO, OHIO.

VEHICLE-TIRE.

Specification of Letters Patent. Application filed April 5, 1909. Serial No. 487,857.

Patented Sept. 20, 1910.

To all whom it may concern:

Be it known that I, WILLIAM D. M'c- NAULL, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Vehicle-Tires; and I do declare the following to be a full, clear, and exact descri tion of the invention, such as will enable otliers skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

My invention relates to tires for vehicles, and is designed to furnish a construction which shall add to the durability of the tire and which shall greatly increase its elasticity;

My invention is also designed to furnish cheap, simple, and effective means for securing my tire in place upon the rim of a [trated in the accompanying drawings, in

parts in 0th views.

wheel; also to provide a construction by means of which the inner pneumatic tube -is protected against abrasion and injury and by which the durability of such tube is greatly increased.

My invention is also designed to increase the effective traction surface of a vehicle tire without increasing its width or weight, and b the same means to furnish an anti-skiddlng device of great efliciency. l

I attain these objects by means of the dearts Figure 1 is a transverse sectional eleva- I tion of my tire in place upon the rim of a wheel and 'Fig. 2 a side elevationof a .seg-

ment of a wheel provided with m tire.

.Gorres onding namera1s"'-ih icate like In the drawings, 1 is the felly of a wheel, the periphery of which is embraced by rimpart 2 rigidly secured to the felly and upon which slides transversely'rimart 3. The two rim parts have respective y outwardly turned radial flan es, which at their outer margins'are turne toward each other, as at 2-3. The rim parts 2-3 and their flanges form a circumferential channel around the ..wheel.

4-4 are ring likeplates split transversely seat 4, the meeting ends being secured to-' transversely, as at 5, to orm in con'unction other by means of turn-buckle 4". The inner flattened portions of plates or rings 4 rest against the flanges of the. parts 23 the outer portion of the lates being curved with the flanged parts 2 -3 circum erential recesses for the reception of the enlarged flanges of the outer rubber tire-to be described.

6 is a flat band or belt,v-preferably continuous,--com osed preferably ofsuitable vulcanized india-rubber and reinforced as by means of a fabric of suitable material, as at 7. The margins of the belt 6 are enlarged transversely, as at 8, the enlarged portions havin a core 9 of vulcanized rubber or other suitab le material. Projecting radially outwardly from the belt 6, midway of its width, is a continuous series of -cushions 10, formed integral with the belt and connected therewith by means of comparatively narrow necks 11. The cushions at their peripheral portions are broadened transversely sufli- 'ciently to overhang or overlap somewhat the curved flanges 5 of the parts 1. The cushions 10 are separated from each other by narrow transverse spaces 12 which are somewhat widened at their bottom or inner portion, as at 122.

Within the circumferential space bounded by the rim-parts 2-3 and the belt 7 1s a neumatic tube 13 of the usual or any pre erred construction (shown in dotted llnes as deflated) and provided with inflating tube and valve 14 of the usual or any preferred construction. First one and then the other of the marginal flanges 8 of the belt 6 are engaged by the curved plates 5 and the parts 2-3 of the rim-parts, and the belt 6 is then stretched tightly by the transverse outward movement of the run part 3 upon the stationary rim part 2 This movement ofthe rim part 3 is effected by the inflation of the pneumatic tube 13, the pressure of which against the flange of the rim-part 3 causes the part 3 to slide upon the part 2, thus ti larged margins of t e" belt 6 in place. The part 3 is prevented from slipplng backwardly and is held in the position to which it may be moved by means of the devices now to be described.

' Secured as at 15 to the rim part 3 at regular intervals and projecting radially 1nwardly toward the hub of the wheel are plates htly clamping .the. en-

16, each having transversely therethrough an aperture 17 through which passes a bolt 18 substantially rectangular in cross-section and having on one side ratchet teeth 19 adapted to engage the edge of a plate 20 secured to the felly of the wheel. The bolt projects into and reciprocates in a recess 21 in the felly. Ihe teeth of the bolt are held normallyin engagement with the plate 20 by means of a spring 22 secured to the wall of the recess and pressing upon the bolt. As the rim part 3 moves laterally outwardly, it carries with it the bolt 18 the notches of which fall successively into engagement with the late 20 holding the rim part from slipping ack, the spring 22 holdthe plate 20 by means of a suitable tool and thus the bolt may be tightenedtransversely independently of the inflation of the tube 13.

It-will be seen that the belt 6, suspended by its margins, forms a stron resilient tire of itself; that in case of acci ent to the inner pneumatic tube the tire still remains sufficiently eflicient and elastic to permit the vehicle to be run until repairs can be conveniently made; that the series of radial cushions 10 with their highly elastic necks add greatly to the resiliency of the tire; that when these cushions are on the underside of the wheel and supporting the weight of the vehicle, the cushions are compressed so that they come in contact with their neighboring cushionsforming a shield and spring which is'practically puncture proof; that the pneumatic tube,which adds further elasticity to the device,is fully protected on all sides from puncture, and that the wear andkabrasionof this tube are reduced to a minimum by reason of its location in a chamber, three sides of which are stationary and are of metal.

Having described my invention, what I claim and desire to secure by Letters Patent I 1. In a device of the described character, a circumferentially channeled wheel-rim, a flexible band circumferentially mounted upon the wheel-rim. and vtransversely tensioned across the channel of the rim, there being formed integral with said band, a series of outwardly projecting radial elastic cushions. 2. In a device of the described character, a circumferentially channeled wheel-rim,' a flexible band circumferentially mounted upon thewheel-rim and bridged transversely across said circumferential channel, means for adjusting the transverse tension of said band, and a series of radially outwardly projecting elastic cushions formed integral with said band. I

3. In a device of the described character a band of flexible material having former integral therewith, a series of radlally projecting cushions, said cushions being of less transverse area at their base than at their summit, combined with a circumferentially channeled wheel-rim, and means for tensioning the band transversely across such channel. a

l. In a device of the described character, a felly, a rim part secured to the' folly, another rim part transversely slidable upon the rim part first mentioned, said two-rim parts having radially turned flanges, forming therebetween a circumferential channel,

means for securing said two rim, parts in j adjusted relation, a. flexible belt transversely bridged and tensioned across said channel,

there being a continuous series. of elastic cushions formed integral with said belt and projecting radially outwardly therefrom, and means for securing the margins of said belt upon the flanges of the rim parts.

In testimony whereof I aflix my signature in presence of two witnesses. i a WILLIAM D. MCNAULL. Witnesses:

L.A. Bowman; LEONA KIBURTZ. 

